I came across this article recently that purports to link to over 4,000 free vintage films and shorts available on the web, although you won't find many big titles here. But I thought it was unusual enough that some here might want to see what's on the page. 

Among the vintages classics they've found in the vastness of the Internet:

-Becky Sharpe, the first ever real full colour feature film,

-Cannibal, The Musical, a bizarre 1993 pic from the creators of South Park

-My Cousin Vinny, the movie that gave us the word "yutes" (youths.)

-Plan Nine From Outer Space, the Ed Wood film notoriously declared to be the worst movie ever made. 

-Reefer Madness, the 1936 film that tried to warn young people away from the evils of marijuana. ("Play faster! Faster!")

-Bon Voyage, a 1944 WWII propaganda film - directed by Alfred Hitchcock

-David Bowie, The Story of Ziggy Stardust

-John Peel's Record Collection, a documentary on one of the most famous British DJs, and his legendary discs.

-Mel Blanc, The Man Of A Thousand Voices, which really shows what's up, doc? 

-Paul McCartney, Chaos & Creation At Abbey Road, in which the former Beatle looks back at the instruments and recording techniques used by the world's greatest rock band. 

-Der Fuerher's Face, an infamous Walt Disney anti-Nazi cartoon starring Donald Duck

-The Great Train Robbery, a 1903 film said to be the first real movie ever made.

And that's just a short list. I can't guarantee all 4,000 links work or that there's no geoblocking. But you can see if anything interests you on the list here.